1993

8.1

0.0

1994

6.0

2006

7.5

1989

8.2

1984

8.0

1998

7.3

1985

6.5

2003

5.0

1988

7.4

1971

8.1

1994

8.3

2005

7.4

1965

7.5

1969

6.8

1967

7.8

1991

6.6

1999

7.2

2000

8.2

1979

4.3